Therafit Shoe Women's Sienna Side Zip Sport Casual Walking Shoe Fabric Patented technology utilizing the signature 7-layer Personalized Comfort System (PCS) - 3 removable PCS dual-density comfort adapters in the midsole wedge Superior arch support with Removable cushioned insoles featuring gel inserts for added protection and Aegis Microbe Shield treatment to help prevent mold and bacteria Functional side zipper, Durable fabric uppers, Durable rubber outsole Approved by the American Podiatric Medical Association Shoe fits small. For a roomier feel consider ordering 1/2 size larger